EP0105545B1 - Method and apparatus for removing pipe coatings - Google Patents

Method and apparatus for removing pipe coatings Download PDF

Info

Publication number
EP0105545B1
EP0105545B1 EP83201289A EP83201289A EP0105545B1 EP 0105545 B1 EP0105545 B1 EP 0105545B1 EP 83201289 A EP83201289 A EP 83201289A EP 83201289 A EP83201289 A EP 83201289A EP 0105545 B1 EP0105545 B1 EP 0105545B1
Authority
EP
European Patent Office
Prior art keywords
pipe
nozzles
pipe surface
circumferential direction
discs
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP83201289A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0105545A1 (en
Inventor
Dirk Frans Van Voskuilen
Frans Van Voskuilen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0105545A1 publication Critical patent/EP0105545A1/en
Application granted granted Critical
Publication of EP0105545B1 publication Critical patent/EP0105545B1/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/023—Cleaning the external surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
    • F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings

Definitions

  • This invention relates to the field of removing pipe coatings and more in particular to a method and apparatus for removing bituminous or other coatings from a pipe surface e.g. a portion of a pipe line.
  • bituminous coatings may be effected by the use of powerful water jets if these water jets are directed against the pipe surface under an acute angle and when each of the water jets is moved in longitudinal as well as in circumferential direction along the pipe surface.
  • Bituminous coatings will be rapidly released then at the places of impact and will be discharged in flake form with the water used for the jets.
  • a vast pipe area can be treated within a short period of time. The water as used is harmless to the environment and the flakes carried thereby will cause only minor environmental problems although they may be collected and recovered later on, if desired.
  • the invention provides a method of removing bituminous or other coatings from a pipe surface, by directing one or more powerful water jets against such pipe surface, which method is characterized in that the water jets are directed against the pipe surface under an acute angle, when seen in circumferential direction of the pipe, and in that each of the water jets is moved in longitudinal as well as in circumferential direction along the pipe surface.
  • each of the water jets is moved in a zig-zag path along the pipe surface, such zig-zag path having the longitudinal direction of the pipe as its main direction, and moreover, the paths of adjacent water jets are closely spaced in circumferential direction.
  • the invention provides apparatus for effecting the invented method.
  • apparatus essentially comprises a frame adapted for being mounted around the pipe to be treated, and one or more nozzles directed against the pipe surface on that frame, as well as means for feeding pressurized water to the nozzles which apparatus is characterised in that the nozzles are directed against the pipe surface under an acute angle when measured in circumferential direction of the pipe and that means are present for moving the nozzles in longitudinal as well as in circumferential direction along the pipe surface.
  • Such apparatus is suitable for effecting the method and may be advantageous in removing bituminous coatings from endless pipes in the open air.
  • the term "powerful water jets” is meant to define water jets of high impelling pressure.
  • This impelling pressure may in general be between 30 and 60 mPa although a pressure of 30 MPa will be sufficient in many cases.
  • the number of water jets is not critical although two or four water jets, suitably distributed around the circumference of the pipe are often used in practice.
  • the frame is needed only for carrying the other parts such as nozzles, driving means and water feeding means. It should be capable of being mounted quite easily to the pipe to be treated and preferably, it is as much open as possible in order to permit an easy discharge of water supplied by the nozzles.
  • the number of nozzles is not critical; nevertheless, the same remarks as above with regard to the water jets may be made here.
  • the apparatus has means for moving the nozzles in longitudinal as well as in circumferential direction of the pipe along the pipe surface.
  • Means for moving the nozzles in circumferential direction will preferably comprise one or more rotatable annular discs positioned in planes perpendicular to the longitudinal axis of the pipe and surrounding the pipe concentrically with some spacing, said discs carrying the nozzles in groups, and means for rotating the discs around their axis.
  • Such a construction is easy to realize and may serve to reach the desired purpose in an efficient way provided that the means for moving in longitudinal and circumferential direction are suitably coordinated.
  • nozzles are unable to perform a complete revolution of 360°C during their travel in circumferential direction of the pipe, because there is a risk then that the water feeding means such as e.g. water hoses would get entangled around the pipe. Therefore, in a preferred embodiment of the invention, arrangements have been made to move the nozzles in a zigzag path along the pipe surface, such zigzag path having the longitudinal direction of the pipe as its main direction, and to ensure that the paths of adjacent nozzles are closely spaced in circumferential direction. With such an embodiment, any entanglement of hoses or other water feeding means can be positively prevented. Such embodiment can be realised e.g.
  • the invention provides a method and apparatus suitable for fast and effective removal of a bituminous or other pipe coating.
  • the apparatus of figs. 1 to 3 has a frame 1 which is open from below and which may rest on the ground, if necessary, by means of a sledge 2. During operation, it is mounted around a pipe 3 to be treated and will be supported by that pipe then. Presuming that pipe 3 is an endless pipe, e.g. an exposed portion of a pipeline, frame 1 may be lifted easily by engaging eyes 4 thereon and may be lowered from above onto the pipe 3.
  • Frame 1 is resting on the pipe 3 by means of travelling wheels 5, for the major part arranged in pairs, which further act as guides during travel of the frame along the pipe in longitudinal direction.
  • the travelling wheels are adjustable in position (compare e.g. the adjusting bolts 6) for the sake of centration.
  • Frame 1 further carries a pair of knurled driving rollers 7,7 driven by a hydromotor 8, for travel of the frame along the pipe in longitudinal direction.
  • the driving rollers 7,7 are fixed to the free ends of a pair of hinged levers 9,9 which are pulled together by means of a hydraulic cylinder 10 so as to ensure that the driving rollers 7,7 will firmly engage pipe 3.
  • each disc 11 Within the frame are two annular discs 11,11, carrying nozzles 12,12.
  • the discs 11,11 are rotatably mounted and positioned in planes which are perpendicular to the longitudinal direction of the pipe during operation. Further, the discs 11,11 will surround the pipe 3 concentrically and with some spacing.
  • Each disc 11 has a detachable portion 13 in order to permit mounting the disc around pipe 3, and is provided with a guard hood 14 for the water to be sprayed.
  • the nozzles 12,12 have been mounted in such a way on discs 11,11 that they are directed towards pipe 3 and that water jets from these nozzles will hit the pipe under an acute impact angle, when seen in circumferential direction. Both the mounting position and the angular position of the nozzles are adjustable, however.
  • the annular discs 11,11 are freely rotatable in frame 1 by means of a series of guiding rollers 18,18. They are driven by a rope 19 passing along a driving roller 20 and further along guiding rollers 21,21, such guiding rollers being positioned in such a way that the rope will engage a portion of the circumference of each annular disc. According to fig. 4, only a single rope 19 and a single driving roller 20 are used for driving both annular discs 11,11, although two series of guiding rollers 21,21 are present and locking clamps 22 are used for preventing the rope from slipping off the driving roller or the annular discs.
  • the driving roller 20 is driven by a rack-and-pinion system 23,24 and the rack 23 is driven by two hydraulic cylinders 25,25..
  • each annular disc 11 is less than 360° and in the case of two annular discs, each carrying two nozzles (like shown), the rotation angle will be somewhat more than 90°, like for instance 110--120°,
  • the apparatus as shown is prepared for operation by positioning it on the pipe 3 to be treated and mounting detachable portions 13 onto the annular discs 11. Further, the travelling wheels 5 are adjusted in position and care is taken that the driving rollers 7 will engage pipe 3 correctly. Thereafter, the various moving systems as well as the nozzles are put into operation. Activation of hydromotor 8 will ensure through driving rollers 7,7 that frame 1 is moved with a certain speed in longitudinal direction along pipe 3, and activation of cylinders 25,25 will result into a reciprocating movement of the annular discs 11,11 in circumferential direction of the pipe.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Cleaning In General (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
EP83201289A 1982-09-08 1983-09-06 Method and apparatus for removing pipe coatings Expired EP0105545B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8203501 1982-09-08
NL8203501A NL8203501A (nl) 1982-09-08 1982-09-08 Werkwijze en inrichting voor het debitumineren of verwijderen van een ander-soortige bekleding, zoals een bekleding van polyethyleen, van een buis.

Publications (2)

Publication Number Publication Date
EP0105545A1 EP0105545A1 (en) 1984-04-18
EP0105545B1 true EP0105545B1 (en) 1985-12-27

Family

ID=19840243

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83201289A Expired EP0105545B1 (en) 1982-09-08 1983-09-06 Method and apparatus for removing pipe coatings

Country Status (5)

Country Link
US (2) US4552594A (enrdf_load_stackoverflow)
EP (1) EP0105545B1 (enrdf_load_stackoverflow)
JP (1) JPS5990685A (enrdf_load_stackoverflow)
DE (2) DE3361635D1 (enrdf_load_stackoverflow)
NL (1) NL8203501A (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5361791A (en) 1987-05-28 1994-11-08 Crc-Evans Rehabilitation Systems, Inc. Cleaning of the exterior surface of a pipeline to remove coatings
US5458683A (en) 1989-07-17 1995-10-17 Crc-Evans Rehabilitation Systems, Inc. Device for surface cleaning, surface preparation and coating applications
US5520734A (en) 1989-07-17 1996-05-28 Crc-Evans Rehabilitation Systems, Inc. High pressure water jet cleaner and coating applicator
US6461231B1 (en) 1990-08-14 2002-10-08 Crc-Evans Rehabilitation Systems, Inc. Air abrasive blast line travel machine

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JPS62502746A (ja) * 1985-05-03 1987-10-22 ドウソン　オフシヨア　プロプライアタリ−　リミテツド 水中構造物の掃除，検査および保守のための遠隔操作式機械
EP0243408A1 (en) * 1985-10-22 1987-11-04 Dawson Offshore Pty. Ltd. A carriage which is mountable to elongate members for passage therealong
US5265634A (en) * 1987-05-28 1993-11-30 Crc-Evans Rehabilitation Systems, Inc. Cleaning of the exterior surface of a pipeline to remove coatings
US5052423A (en) * 1987-05-28 1991-10-01 Cups, Inc. Hydrocleaning of the exterior surface of a pipeline to remove coatings
US5178171A (en) * 1987-05-28 1993-01-12 Crc-Evans Rehabilitation Systems, Inc. Hydrocleaning of the exterior surface of a pipeline to remove coatings
US5209245A (en) * 1987-05-28 1993-05-11 Crc-Evans Rehabilitation Systems, Inc. Hydrocleaning of the exterior surface of a pipeline to remove coatings
US5074323A (en) * 1988-05-23 1991-12-24 Cups, Inc. Hydrocleaning of the exterior surface of a pipeline to remove coatings
US5226973A (en) * 1987-05-28 1993-07-13 Crc-Evans Rehabilitation Systems, Inc. Hydrocleaning of the exterior surface of a pipeline to remove coatings
US5092357A (en) * 1987-05-28 1992-03-03 Cups, Inc. Cleaning of the exterior surface of a pipeline to remove coatings
US4953496A (en) * 1989-07-17 1990-09-04 Crc-Evans Pipeline International, Inc. High pressure water jet cleaner and coating applicator
EP0430856B1 (en) * 1989-11-27 1995-06-28 United Technologies Corporation Liquid jet removal of plasma sprayed and sintered coatings
US5107633A (en) * 1990-01-26 1992-04-28 E.B. Thomas Method and apparatus for cleaning pipe
US5085016A (en) * 1990-01-26 1992-02-04 E. B. Thomas Method and apparatus for cleaning pipe
US5385609A (en) * 1990-01-26 1995-01-31 E. B. Thomas Apparatus and method for treating the outer surface of a pipeline
US5398461A (en) * 1990-01-26 1995-03-21 E. B. Thomas Apparatus and method for cleaning a pipeline
US5267417A (en) * 1990-01-26 1993-12-07 Rose James L Method and apparatus for removing outer coatings from pipe
US5191740A (en) * 1990-01-26 1993-03-09 E. B. Thomas Apparatus for cleaning pipe
AU7259191A (en) * 1990-01-26 1991-08-21 James L. Rose Method and apparatus for cleaning pipe
US5199226A (en) * 1990-01-26 1993-04-06 E. B. Thomas Method and apparatus for removing outer coatings from pipe
NL9002031A (nl) * 1990-09-14 1992-04-01 Voskuilen Woudenberg Bv Inrichting voor het bewerken van een uitwendig buisoppervlak.
US5220935A (en) * 1990-12-28 1993-06-22 Carolina Equipment & Supply Co., Inc. Apparatus and method for cleaning with a focused fluid stream
US5263504A (en) * 1990-12-28 1993-11-23 Carolina Equipment And Supply Company, Inc. Apparatus and method for cleaning with a focused fluid stream
US5136969A (en) * 1991-01-25 1992-08-11 Cups, Inc. Modularized machine for reconditioning pipelines
US5216849A (en) * 1991-05-29 1993-06-08 Navajo Refining Company Apparatus and method for sandblasting pipe
CA2097091C (en) * 1992-07-10 2000-10-31 Sidney A. Taylor High pressure water jet cleaner and coating applicator
US5615696A (en) * 1992-07-24 1997-04-01 Lawler; Oliver W. Apparatus for treating pipe
US5849099A (en) * 1995-01-18 1998-12-15 Mcguire; Dennis Method for removing coatings from the hulls of vessels using ultra-high pressure water
US6544346B1 (en) 1997-07-01 2003-04-08 General Electric Company Method for repairing a thermal barrier coating
JP2000162789A (ja) * 1997-12-26 2000-06-16 Canon Inc 基体の洗浄方法および洗浄装置
US6217670B1 (en) 1998-12-31 2001-04-17 Cf Gomma Usa, Inc. Method of manufacturing coated fluid tubing
US6832406B1 (en) * 2002-04-05 2004-12-21 Amec Pipeline Professionals, Inc. Pipeline surface preparation for inspection with debris collection
US7059945B2 (en) * 2004-05-28 2006-06-13 Offshore Joint Services, Inc. Pipe weld cleaning machine
US20080023123A1 (en) * 2006-07-31 2008-01-31 Schlumberger Technology Corporation Automatic elastomer extrusion apparatus and method
NO329050B1 (no) * 2007-10-12 2010-08-02 Pinovo As Fremgangsmate og apparat til rengjoring av overflaten til langstrakte legemer.
US8619134B2 (en) * 2009-03-11 2013-12-31 Seatrepid International, Llc Unmanned apparatus traversal and inspection system
US8961077B2 (en) * 2009-10-26 2015-02-24 Illlinois Tool Works Inc. Severing and beveling tool
US20110097157A1 (en) * 2009-10-26 2011-04-28 Illinois Tool Works Inc. Deep Water Pipe Preparation Machine
US20110097979A1 (en) * 2009-10-26 2011-04-28 Illinois Tool Works Inc. Fusion Bonded Epoxy Removal Tool
DE102010001651A1 (de) * 2010-02-06 2011-08-11 UNIDENSE Technology GmbH, 01987 Vorrichtung zur Reinigung der Außenfläche eines Rohrs, insbesondere eines vertikalen Rohres
CA2694883C (fr) * 2010-02-25 2016-08-09 Hydro-Quebec Robot pour usiner une piece de structure sous l'eau
CA2764099C (en) 2011-01-14 2019-06-04 Automatic Coating Limited Pipe conditioning tool for surface treatment of a pipe
US8895096B2 (en) 2011-06-22 2014-11-25 Frito-Lay North America, Inc. Continuous oven with a cascading conveyor
NL2007441C2 (en) * 2011-09-19 2013-03-21 Heerema Marine Contractors Nl Coating device for coating a pipeline or a pipe section.
CN102343345A (zh) * 2011-10-11 2012-02-08 中国海洋石油总公司 自夹紧全旋转高压水管道涂层清理装置
NL2008206C2 (en) * 2012-01-31 2013-08-01 Bluemarine Offshore Yard Service B V Device and method for the coating of a surface area of a gap in the coating of a pipeline.
US20150150269A1 (en) * 2012-08-01 2015-06-04 Frito-Lay North America, Inc. Continuous process and apparatus for making a pita chip
MX370557B (es) 2013-10-03 2019-12-17 Illinois Tool Works Soporte de herramientas giratorio para un aparato de maquinado de tubos.
US10124494B2 (en) 2016-09-20 2018-11-13 Saudi Arabian Oil Company Coordinated water environment mobile robots
CA3053575A1 (en) 2017-02-17 2018-08-23 Automatic Coating Limited Girth weld coater
US10900295B2 (en) * 2017-12-09 2021-01-26 Oceaneering International, Inc. Flexible riser insulation removal tool for ultrasonic test inspection
CN109778789B (zh) * 2018-04-04 2020-08-25 水利部交通运输部国家能源局南京水利科学研究院 一种混凝土面板堆石坝面板脱空区水下修复系统
US11945010B2 (en) 2018-11-06 2024-04-02 LMC Industrial Contractors, Inc. Remediation of excavated pipe sections
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CN115301640B (zh) * 2022-08-25 2023-11-17 上海友海建设工程有限公司 一种水利施工管道外表面除锈装置

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5361791A (en) 1987-05-28 1994-11-08 Crc-Evans Rehabilitation Systems, Inc. Cleaning of the exterior surface of a pipeline to remove coatings
US5458683A (en) 1989-07-17 1995-10-17 Crc-Evans Rehabilitation Systems, Inc. Device for surface cleaning, surface preparation and coating applications
US5520734A (en) 1989-07-17 1996-05-28 Crc-Evans Rehabilitation Systems, Inc. High pressure water jet cleaner and coating applicator
US6461231B1 (en) 1990-08-14 2002-10-08 Crc-Evans Rehabilitation Systems, Inc. Air abrasive blast line travel machine

Also Published As

Publication number Publication date
US4677998A (en) 1987-07-07
JPH0433513B2 (enrdf_load_stackoverflow) 1992-06-03
EP0105545A1 (en) 1984-04-18
NL8203501A (nl) 1984-04-02
DE8325867U1 (de) 1983-12-29
DE3361635D1 (en) 1986-02-06
JPS5990685A (ja) 1984-05-25
US4552594A (en) 1985-11-12

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